General

Engineer's Note

This is a server-grade DDR4 RDIMM designed for enterprise platforms, making it ideal for virtualization, in-memory databases, and mission-critical workloads that demand data integrity. Its registered signal type and ECC error correction, combined with a dual-rank x8 configuration, ensure stable operation at 3200 MT/s across high-density memory channels while mitigating single-bit errors in real time.

Technical Specs & Insights

1. A substantial per-DIMM capacity enables denser memory configurations, directly increasing virtual machine consolidation ratios in hyperconverged infrastructure.
2. ECC protection continuously corrects single-bit errors, shielding financial transactions and database records from silent data corruption.
3. Registered buffering stabilizes command and address signals across fully loaded server channels, preserving uptime under continuous heavy workloads.
4. The elevated transfer speed delivers the bandwidth headroom needed for real-time analytics and low-latency caching across numerous simultaneous requests.
5. A dual-rank design keeps memory banks interleaved, maximizing channel utilization and sustaining steady throughput during concurrent multi-tenant operations.

Why These Specs Matter

The Samsung M393A2K43DB3-CWECO is an enterprise-grade 16GB DDR4-3200 RDIMM built for mission-critical servers. First, ECC error correction silently eliminates single-bit memory errors that would otherwise corrupt virtual machine data or trigger application crashes in a multi-tenant hosting cluster, preserving service integrity around the clock. Second, the registered clock driver stabilizes signal integrity across fully populated memory channels, enabling you to achieve high-density configurations for in-memory databases like SAP HANA — without the random lockups that plague unbuffered DIMMs at scale. Third, its dual-rank x8 design leverages rank interleaving to overlap read and write operations, reducing latency for transactional databases and Redis caching layers where every microsecond counts. Finally, 3200MT/s throughput at 1.2V meets the bandwidth demands of modern Xeon cores while capping power consumption in dense rack deployments. This combination transforms your infrastructure into a resilient, high-speed platform directly impacting your bottom line.

Endurance & Reliability

Capacity Planning Guide

This 16GB DDR4-3200 ECC Registered RDIMM (dual-rank, CL22) is a server memory module. Below are configuration recommendations for common server workloads.

General Virtualization
For typical hypervisors, install one module per memory channel per CPU to balance capacity and bandwidth. In a dual-socket server with eight channels each, populating all channels with these 16GB RDIMMs yields 256GB total RAM—enough for 20–30 moderate VMs while preserving the full 3200 MT/s speed. Always use identical modules to avoid performance inconsistencies.

In-Memory Database
Memory databases require large capacity and low latency. Populate every channel with a single 16GB RDIMM to achieve 128GB per socket at maximum frequency. For larger in-memory datasets, mirror this population on a second socket to reach 256GB without degrading signal integrity. ECC ensures critical data reliability under constant load.

High-Performance Computing
HPC workloads demand peak memory bandwidth. Install one dual-rank 16GB RDIMM per channel across all available channels per CPU—eight modules per socket—to exploit rank interleaving and sustain 3200 MT/s. This configuration delivers the optimal throughput essential for simulation, modeling, and parallel analysis codes.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R750, HPE DL380 Gen10 Plus, Lenovo SR650 V2.

FAQ